Support for arbitary depth heading

[wrvsrx]

Currently heading deeper than 6 is not supoprted

######### j

[treeman]

Hmm. Do you have a specific use-case for depth 7+? The markdown treesitter also only supports 6 deep.

It's possible to support arbitrary nesting, the problem is that we create tokens like heading1, heading2 etc and as far as I know they can't be created dynamically with treesitter. So either we abandon them and only use heading, relying on Neovim's #eq? predicate for queries (I hope there are similar ones for other editors), or we add a heading_deep that captures headings of 7+.

I don't know what approach I think is the best.

[wrvsrx]

I mention that just because djot support that in specification.

For tree-sitter highlighting, I think heading is enough?

[treeman]

You're right, this is something we should support. I'm leaning towards heading being the best approach...